Monogamy hormone
Microtus orchrogaster is a small terrain. The male is monogamous and has an enormous relationship with his female. After fertilization, she takes good care of her female and the enmity with the plantations and the females that approach her territory is enormous.
This amazing behavior makes Maryland researchers discover. Biochemical behavior is due to the presence of a hormone, vasopressin. With the use of vasopressin inhibitor, soils lose the tendency to monogamy and aggression (both at once). However, when vasopressin is introduced into unassimilated lands, an opposite phenomenon occurs. It seems that pairing activates the vasopressin circuit.
Other scientists also realized that in male topillo monogamy and in collective behavior this hormone could be related. In the female it seems that the cat plays a similar role.
In humans the secretion of AVP or arginine has been associated with sexual activity.
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